SECTIONS AT HIGHGATE SPRINGS. 



The character of some of these folds is shown in Fig. 182. It is taken at B in Fig. 179, between the 

 shore of a small bay or harbor and the end of the point, and is about twenty-five rods long. There are at 

 least three folds, the most southern of which has its arch worn away. The most northern fold has a crack 

 running through it. Most of the layers are quite thick from four inches to a foot. A pile of bowlders and 

 debris near the north end, obscures some of the lower strata. The whole section may be seen to the best 

 advantage by sailing near the shore. 



FIG. 182. 



Thick-bedded. 



Plicated strata in Trenton Limestone, Highgate Springs. 



The rock seems to have "undergone a partial metamorphosis, in that it is unusually compact, is of a gray- 

 ish color, and some portions of it ring when 



struck by a hammer. A little east of the Fl - 183 - 



sketch the rock becomes whiter; and Fig. 183 

 represents the position of the strata there. It 

 is upon the east side of the same point. 



Upon the next point of land, which is not 

 represented upon any of the cuts, the limestone 



is white, and is very pure carbonate of lime. Its color seems to be due to its metamorphosis, as may be 

 also its purity. It makes an excellent quick lime, large quantities of which are annually manufactured and 

 sent to market. 



Fig. 184 shows the position of another metamorphic mass of limestone, upon a small island north of the 

 harbor. There are two curves upon it, and one of them has the steep slope, so common to one of the sides 

 of a fold. 



Fio. 184. 



Section in Trenton Limestone at the Point. 



Section in Trenton Limestone upon the Island. 



Highgate Springs is a fine place to study Geology. A large number of fossils are found there in the 

 Trenton limestone, and two miles east is the only locality of animal remains in Vermont that occur in the 

 red sandstone series. Both these formations present a great many curves in their strata, which are finely 

 exposed for examination. Not less interesting are the deposits of limestone of the Hudson River Group, and 

 the Champlain clays. The naturalist will find it an excellent place to procure the fishes of Lake Cham- 

 plain; and if he is a little indisposed, the excellent sulphur spring water, with the good care and attention 

 of Mr. Averill, the intelligent proprietor of the Franklin House, whose hospitality we have renewedly en- 

 joyed, will quickly restore him to health. 



Most of the Trenton limestone in Vermont, dips to the east at a small angle. The exception is found 

 Fie 185 in those patches that lie west of the Chazy limestone, upon 



Lake Champlain. In the northwest part of Panton it has a 

 variable dip ; sometimes it forms a graceful curve like Fig. 185. 

 This is about thirty feet high, and several rods long. 



Utica slate is associated with much of the Trenton limestone 



Trenton Limestone in Pauton. , j m T.-I i i A i. i.x 



between Panton and Chimney Point, and many sketches might 



be given, as in Fig. 216, where the Trenton limestone forms another arch upon a larger scale, and passes 

 under the overlying slate. 



